According to USA Today's sports bureau, NASCAR manufacturer Dodge is still seeking partners for the 2013 Sprint Cup Series season after Penske Racing's shock defection to Ford earlier this year.The brand, which re-entered NASCAR in 2001 after a decades-long hiatus, will lose both its lone team and engine supplier in Roger Penske's organization at the end of the season. After Robby Gordon Motorsports scaled back its NASCAR operations earlier this season, Penske's two entries for Brad Keselowski and A.J. Allmendinger have been Dodge's only full-time Sprint Cup entries this year.Penske provides its own Dodge-branded engines through its own engine building shop. That deal could continue, or Dodge could establish its own shop. Penske has experie...